'/' 응용 프로그램에 서버 오류가 있습니다.

개체 참조가 개체의 인스턴스로 설정되지 않았습니다.

설명: 현재 웹 요청을 실행하는 동안 처리되지 않은 예외가 발생했습니다. 스택 추적을 검토하여 발생한 오류 및 코드에서 오류가 발생한 위치에 대한 자세한 정보를 확인하십시오.

예외 정보: System.NullReferenceException: 개체 참조가 개체의 인스턴스로 설정되지 않았습니다.

소스 오류:

현재 웹 요청을 실행하는 동안 처리되지 않은 예외가 생성되었습니다. 아래의 예외 스택 추적을 사용하여 예외의 원인 및 위치 정보를 확인할 수 있습니다.

스택 추적:


[NullReferenceException: 개체 참조가 개체의 인스턴스로 설정되지 않았습니다.]
   lambda_method(Closure ) +109
   Microsoft.EntityFrameworkCore.Query.Internal.ParameterExtractingExpressionVisitor.GetValue(Expression expression, String& parameterName) +1033

[InvalidOperationException: An exception was thrown while attempting to evaluate a LINQ query parameter expression. To show additional information call EnableSensitiveDataLogging() when overriding DbContext.OnConfiguring.]
   Microsoft.EntityFrameworkCore.Query.Internal.ParameterExtractingExpressionVisitor.GetValue(Expression expression, String& parameterName) +1213
   Microsoft.EntityFrameworkCore.Query.Internal.ParameterExtractingExpressionVisitor.Evaluate(Expression expression, Boolean generateParameter) +84
   Microsoft.EntityFrameworkCore.Query.Internal.ParameterExtractingExpressionVisitor.Visit(Expression expression) +132
   System.Linq.Expressions.ExpressionVisitor.VisitArguments(IArgumentProvider nodes) +99
   System.Linq.Expressions.ExpressionVisitor.VisitMethodCall(MethodCallExpression node) +56
   Microsoft.EntityFrameworkCore.Query.Internal.ParameterExtractingExpressionVisitor.Visit(Expression expression) +156
   Microsoft.EntityFrameworkCore.Query.Internal.ParameterExtractingExpressionVisitor.VisitBinary(BinaryExpression binaryExpression) +331
   Microsoft.EntityFrameworkCore.Query.Internal.ParameterExtractingExpressionVisitor.Visit(Expression expression) +156
   Microsoft.EntityFrameworkCore.Query.Internal.ParameterExtractingExpressionVisitor.VisitBinary(BinaryExpression binaryExpression) +259
   Microsoft.EntityFrameworkCore.Query.Internal.ParameterExtractingExpressionVisitor.Visit(Expression expression) +156
   System.Linq.Expressions.ExpressionVisitor.VisitLambda(Expression`1 node) +30
   Microsoft.EntityFrameworkCore.Query.Internal.ParameterExtractingExpressionVisitor.Visit(Expression expression) +156
   System.Linq.Expressions.ExpressionVisitor.VisitUnary(UnaryExpression node) +22
   Microsoft.EntityFrameworkCore.Query.Internal.ParameterExtractingExpressionVisitor.Visit(Expression expression) +156
   System.Linq.Expressions.ExpressionVisitor.VisitArguments(IArgumentProvider nodes) +99
   System.Linq.Expressions.ExpressionVisitor.VisitMethodCall(MethodCallExpression node) +56
   Microsoft.EntityFrameworkCore.Query.Internal.ParameterExtractingExpressionVisitor.Visit(Expression expression) +156
   Microsoft.EntityFrameworkCore.Query.Internal.ParameterExtractingExpressionVisitor.ExtractParameters(Expression expression) +96
   Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.Execute(Expression query) +155
   trade.Controllers.TradeController.Info(Nullable`1 id) in D:\Project\karminea\trade\trade\Controllers\TradeController.cs:0
   lambda_method(Closure , ControllerBase , Object[] ) +151
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +35
   System.Web.Mvc.Async.<>c.<BeginInvokeSynchronousActionMethod>b__9_0(IAsyncResult asyncResult, ActionInvocation innerInvokeState) +39
   System.Web.Mvc.Async.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult) +77
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +42
   System.Web.Mvc.Async.<>c__DisplayClass11_0.<InvokeActionMethodFilterAsynchronouslyRecursive>b__0() +80
   System.Web.Mvc.Async.<>c__DisplayClass11_2.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2() +396
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +42
   System.Web.Mvc.Async.<>c__DisplayClass3_6.<BeginInvokeAction>b__4() +50
   System.Web.Mvc.Async.<>c__DisplayClass3_1.<BeginInvokeAction>b__1(IAsyncResult asyncResult) +188
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +38
   System.Web.Mvc.<>c.<BeginExecuteCore>b__152_1(IAsyncResult asyncResult, ExecuteCoreState innerState) +29
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +73
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +52
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +39
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +38
   System.Web.Mvc.<>c.<BeginProcessRequest>b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState) +43
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +73
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +38
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +651
   System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +220
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +134


버전 정보: Microsoft .NET Framework 버전:4.0.30319; ASP.NET 버전:4.8.4110.0